java学习 reflect

//Class类

class classname{

}

classname obj=new classname();

Class c1=classname.class;

Class c2=obj.getClass();

Class c3=Class.forName(classname);

//c1c2c3是classname的类类型(class type)

//new是静态加载类

//Class.forName是动态加载类

classname obj1=(classname)c1.newInstance;

//使用类类型实例化对象 并做类型转换